What's going on with these chambers fitment?
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- Suzuki 2-Strokes: 1973 GT380
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Re: What's going on with these chambers fitment?
Try, loosening the 2 bolts on the cylinder flange nearly far out as they will go. Slide exhaust toward front of bike. Run mounting bolt through at rear. Then, tighten the cylinder bolts. Be mindful of torque on cylinder flanges. They sometimes strip, easily. Turn bolts by hand as far as you can, then use a wrench. Ant seize grease on threads, always helps to avoid future problems.
- Alan H
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Re: What's going on with these chambers fitment?
Rear frames changed about 1975 I think. As did 550s and 750s.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
- jabcb
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Re: What's going on with these chambers fitment?
Higgspeed has two pipe designs for the GT380 & GT750: early J/K (72 & 73) and late.
They have only one GT550 pipe design.
I’ve seen late-model Higgspeed pipes mounted on a 72 GT380J that used an adapter for the rear mount.
Can provide a pic of the adapter if you want to go that route.
They have only one GT550 pipe design.
I’ve seen late-model Higgspeed pipes mounted on a 72 GT380J that used an adapter for the rear mount.
Can provide a pic of the adapter if you want to go that route.
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
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- Expert racer
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Re: What's going on with these chambers fitment?
Alan's right - the exhaust mounting points on the frames changed with the L/M models in '74 / 75, to raise the exhausts and give more ground clearance. So factory pipes from J/K models are not a straight bolt-on for later bikes.
You can make a small adapter plate from a piece of plate steel to link the frame to the chamber. Painted black, no-one will notice.
You can make a small adapter plate from a piece of plate steel to link the frame to the chamber. Painted black, no-one will notice.
1976 GT380 - wounded by me, and sold on
2006 SV650S - killed by a patch of diesel and a kerb in Feb 2019
2017 SV650 AL7 - naked and unashamed
2006 SV650S - killed by a patch of diesel and a kerb in Feb 2019
2017 SV650 AL7 - naked and unashamed
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Re: What's going on with these chambers fitment?
Major hardware stores sell one inch wide by 4 ft long quarter inch aluminum. Easy to drill and cut obviously.
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Re: What's going on with these chambers fitment?
I called Jemco earlier today he seemed unaware of any chassis changes. Seems like that 1.5" you guys mention is what I'm seeing. I hope I can get them to hang well, I don't want to use adapters but recoating the pipes is a bigger pain in the ass at this point.
- jabcb
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- Joined: Mon Dec 13, 2010 4:32 pm
- Country: USA
- Suzuki 2-Strokes: 69 T350 thru 75 GT750
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Re: What's going on with these chambers fitment?
A pic of the adapter:
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
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- On the street
- Posts: 44
- Joined: Wed May 27, 2015 3:27 pm
- Country: usa
- Suzuki 2-Strokes: 1973 GT380
Re: What's going on with these chambers fitment?
Thanks for the tip, I made some temporary straps for them and once the bike is fully assembled I will cut the mounts off and weld on a permanent solution.
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- On the street
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- Joined: Wed May 27, 2015 3:27 pm
- Country: usa
- Suzuki 2-Strokes: 1973 GT380
- Alan H
- Moto GP
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- Joined: Thu Feb 16, 2012 11:50 am
- Country: England
- Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
- Location: The Republic of South Yorkshire
Re: What's going on with these chambers fitment?
Either heat up the kickstart and bend it out a tad, or have a word with Mr. Hammer and get him to slightly adjust the outer surface of the spannie so the kickstart misses it.
Really though, I notice that the outer pipe is on the outside of the rear footrest frame hanger on an earlier pic. Fit it inside if you can, that'll move it inside a bit so the kickstarter misses the pipe.
Really though, I notice that the outer pipe is on the outside of the rear footrest frame hanger on an earlier pic. Fit it inside if you can, that'll move it inside a bit so the kickstarter misses the pipe.
Think of how stupid the average person is, then realise that half of them are more stupid than that.